vikunja-api/pkg/models/tasks_rights.go

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// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-2020 Vikunja and contributors. All rights reserved.
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//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
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//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
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//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package models
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import (
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"code.vikunja.io/web"
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)
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// CanDelete checks if the user can delete an task
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func (t *Task) CanDelete(a web.Auth) (bool, error) {
return t.canDoTask(a)
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}
// CanUpdate determines if a user has the right to update a list task
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func (t *Task) CanUpdate(a web.Auth) (bool, error) {
return t.canDoTask(a)
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}
// CanCreate determines if a user has the right to create a list task
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func (t *Task) CanCreate(a web.Auth) (bool, error) {
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// A user can do a task if he has write acces to its list
l := &List{ID: t.ListID}
return l.CanWrite(a)
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}
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// CanRead determines if a user can read a task
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func (t *Task) CanRead(a web.Auth) (canRead bool, err error) {
//return t.canDoTask(a)
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// Get the task, error out if it doesn't exist
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*t, err = GetTaskByIDSimple(t.ID)
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if err != nil {
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return
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}
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// A user can read a task if it has access to the list
l := &List{ID: t.ListID}
return l.CanRead(a)
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}
// CanWrite checks if a user has write access to a task
func (t *Task) CanWrite(a web.Auth) (canWrite bool, err error) {
return t.canDoTask(a)
}
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// Helper function to check if a user can do stuff on a list task
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func (t *Task) canDoTask(a web.Auth) (bool, error) {
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// Get the task
ot, err := GetTaskByIDSimple(t.ID)
if err != nil {
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return false, err
}
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// Check if we're moving the task into a different list to check if the user has sufficient rights for that on the new list
if t.ListID != 0 && t.ListID != ot.ListID {
newList := &List{ID: t.ListID}
can, err := newList.CanWrite(a)
if err != nil {
return false, err
}
if !can {
return false, ErrGenericForbidden{}
}
}
// A user can do a task if it has write acces to its list
l := &List{ID: ot.ListID}
return l.CanWrite(a)
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}